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migrating Thunderbird from Windows to MacOS, Inbox file > 4GB, hints on how to move it?

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  • Last reply by david

clementfkent
clementfkent
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We have a long-used Tbird system on a PC. One of the files in the profile (/ImapMail/../Inbox is > 4GB.

We need to migrate to a MacOS 12.16 machine. I've already copied all of the smaller files in our Tbird profile over. I can't copy the >4GB file to a Fat32 drive because it exceeds Fat32 file sizes. Any hints on how to do this? What is the format of an Inbox file - it looks like it might be some kind of archive?

We have a long-used Tbird system on a PC. One of the files in the profile (/ImapMail/../Inbox is > 4GB. We need to migrate to a MacOS 12.16 machine. I've already copied all of the smaller files in our Tbird profile over. I can't copy the >4GB file to a Fat32 drive because it exceeds Fat32 file sizes. Any hints on how to do this? What is the format of an Inbox file - it looks like it might be some kind of archive?

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david
david
  • Top 10 Contributor
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I suggest using the importexport addon to export the 4gig folder to eml files and then import them after the move.